edge_reciprocity: Edge Reciprocity

In cograph: Analysis and Visualization of Complex Networks

Edge Reciprocity

Description

Convenience wrapper around edge_centrality that returns only reciprocity information for directed networks.

Usage

edge_reciprocity(x, top = NULL, directed = NULL, digits = NULL, ...)

Arguments

x	Network input: matrix, igraph, network, cograph_network, or tna object.
top	Integer or NULL. Return only the top N edges. Default NULL.
directed	Logical or NULL. Default NULL (auto-detect).
digits	Integer or NULL. Round numeric columns. Default NULL.
...	Additional arguments passed to edge_centrality.

Value

A data frame with one row per directed edge and columns from, to, weight, reciprocated (logical), reverse_weight (NA when not reciprocated) and weight_ratio (weight / reverse_weight; NA when not reciprocated). Rows are ordered with reciprocated edges first, then by |weight_ratio| descending.

Errors

Raises an error when the resolved network is undirected: reciprocity is only defined for directed edges.

See Also

edge_centrality

Examples

adj <- matrix(c(0, 0.8, 0, 0.3, 0, 0.5, 0.7, 0, 0), 3, 3, byrow = TRUE)
rownames(adj) <- colnames(adj) <- c("A", "B", "C")
cograph::edge_reciprocity(adj, directed = TRUE)

cograph documentation built on Sept. 30, 2026, 5:08 p.m.